Search a number
-
+
30310140412 = 22171923459861
BaseRepresentation
bin11100001110101000…
…000000100111111100
32220020100212200001001
4130032220000213330
5444033343443122
621531351300044
72122053641206
oct341650004774
986210780031
1030310140412
1111944314122
125a5a97a624
132b20703636
1416776db776
15bc5e8c527
hex70ea009fc

30310140412 has 24 divisors (see below), whose sum is σ = 59118852240. Its totient is φ = 13512879360.

The previous prime is 30310140409. The next prime is 30310140451. The reversal of 30310140412 is 21404101303.

It is a super-2 number, since 2×303101404122 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 30310140412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11728639 + ... + 11731222.

It is an arithmetic number, because the mean of its divisors is an integer number (2463285510).

Almost surely, 230310140412 is an apocalyptic number.

It is an amenable number.

30310140412 is a deficient number, since it is larger than the sum of its proper divisors (28808711828).

30310140412 is a wasteful number, since it uses less digits than its factorization.

30310140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23459901 (or 23459899 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30310140412 its reverse (21404101303), we get a palindrome (51714241715).

The spelling of 30310140412 in words is "thirty billion, three hundred ten million, one hundred forty thousand, four hundred twelve".

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 23459861 46919722 93839444 398817637 445737359 797635274 891474718 1595270548 1782949436 7577535103 15155070206 30310140412